34.2. Source Pre-Processing

34.2. Source Pre-Processing
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C sources are pre-processed with the following tools before being passed to the C compiler:

utils/comment5.c

Convert /bin/sh-style comments (lines starting with "# ") to C-style comments (/**/).

Warning

The use of /bin/sh-style comments is deprecated.

utils/comment5.sed

A GNU sed script that converts /bin/sh-style comments (lines starting with "# ") to C-style comments (/**/). Functionally equivalent to utils/comment5.c.

utils/varbrace.c

Add braces to C source code, so that variable declarations (introduced with the pseudo-keyword var) can be used within blocks, like in C++ and C99.

utils/ccpaux.c

When cpp cannot handle indented directives, remove the indentation.

utils/gctrigger.c

Add GCTRIGGER statements at the head of function bodies (for functions marked with the maygc pseudo-keyword).

utils/deema.c

When cpp cannot handle empty macro arguments, insert _EMA_ instead.

utils/ccmp2c.c

For the clx/new-clx module only. Allows cpp-style preprocessing before modprep processing. Should be merged into modprep eventually.

utils/modprep.lisp

For some modules only, see Section 32.2.7.1, “Modprep”.

utils/unicode/

Generate NLS files in src/.

utils/unicode/UnicodeDataFull.txt: Character descriptions from Unicode 3.2; used by DESCRIBE and installed in data/ under CUSTOM:*LIB-DIRECTORY*.

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